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Finding the Fourth Proportional to 52,491.40, 78,737.70 and 13,048.60

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Solution

The fourth proportional to 52,491.40, 78,737.70 and 13,048.60 is: 19,573.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,491.40 : 78,737.70 = 13,048.60 : x
  2. Step 2: Convert to fraction form
    52,491.40/78,737.70 = 13,048.60/x
  3. Step 3: Cross multiply
    52,491.40x = 78,737.70 × 13,048.60
  4. Step 4: Simplify right side
    52,491.40x = 1,027,416,752.22
  5. Step 5: Solve for x
    x = 1,027,416,752.22/52,491.40
  6. Step 6: Final answer
    x = 19,573.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.